abstract：:Co-ordinated bi-manual actions form the basis for many everyday motor skills. In this review, the internal model approach to the problem of bi-manual co-ordination is presented. Bi-manual coordinative tasks are often regarded as a hallmark of complex action. They are often associated with object manipulation, whether ...

journal_title：Human movement science

authors： Witney AG

更新日期：2004-11-01 00:00:00

abstract：:To gain insight into the multiform dynamics and integration of remote yet pertinent subsystems into the performance of complex perceptual-motor skills, we recently conducted a series of longitudinal and cross-sectional experiments on the acquisition of 3-ball cascade juggling in which we measured, next to the ball tra...

journal_title：Human movement science

authors： Huys R,Daffertshofer A,Beek PJ

更新日期：2004-10-01 00:00:00

abstract：:Children who have been diagnosed with any one developmental disorder are very likely to meet diagnostic criteria for some other developmental disorder. Although comorbidity has long been acknowledged in childhood disorders, little is understood about the mechanisms that are responsible for the high level of comorbidit...

journal_title：Human movement science

authors： Piek JP,Dyck MJ

更新日期：2004-10-01 00:00:00

abstract：:A simple model of standing dives is used to investigate optimal jumping strategies from compliant surfaces and applied to springboard diving. The human model consists of a massless leg actuated by knee torque, and a lumped torso mass centered above the leg. The springboard is modeled as a mass-spring system. Maximum j...

journal_title：Human movement science

authors： Cheng KB,Hubbard M

更新日期：2004-06-01 00:00:00

abstract：:The purpose of this study was to gain insight into the kinematics and kinetics of the vertical jump when jumping for different heights and to investigate movement effectiveness as a criterion for movement control in submaximal jumping. In order to jump high a countermovement is used and large body segments are rotated...

journal_title：Human movement science

authors： Vanrenterghem J,Lees A,Lenoir M,Aerts P,De Clercq D

更新日期：2004-04-01 00:00:00

abstract：:Thirty-two children with Developmental Coordination Disorder (DCD) and learning disabilities (LD) and their age-matched controls attending normal primary schools were investigated using kinematic movement analysis of fine-motor performance. Three hypotheses about the nature of the motor deficits observed in children w...

journal_title：Human movement science

authors： Smits-Engelsman BC,Wilson PH,Westenberg Y,Duysens J

更新日期：2003-11-01 00:00:00

abstract：:The present study addressed the effect of articular conformity of the shoulder joint on the stability of inter-joint coordination during circular drawing movements. Twelve right-handed participants performed clockwise and counter-clockwise circular drawing movements at nine locations in the mid-sagittal plane. The tas...

journal_title：Human movement science

authors： Bosga J,Meulenbroek RG,Swinnen SP

更新日期：2003-08-01 00:00:00

abstract：:Position sense has been found to decay as a function of the time delay the limb remains in a static position prior to movement onset. Position sense has also been found to deteriorate as a function of aging, with increased reliance on vision by the elderly. This study investigated whether the pointing kinematics of el...

journal_title：Human movement science

authors： Romero DH,Van Gemmert AW,Adler CH,Bekkering H,Stelmach GE

更新日期：2003-04-01 00:00:00

abstract：:The present study investigated Bernstein's [The co-ordination and regulation of movements, 1967] proposal regarding the three stages of learning in the changing coordination and control of redundant joint-space degrees of freedom. Six participants practiced maintaining balance on a moving platform that was sinusoidall...

journal_title：Human movement science

authors： Ko YG,Challis JH,Newell KM

更新日期：2003-02-01 00:00:00

abstract：:Human voluntary movement involves the integration of kinaesthetic information with efferent motor activity during the planning and execution stages of movement. While much is known of the inhibitory and excitatory effects resulting from activation of specific kinaesthetic sensory receptors, in the present study we emp...

journal_title：Human movement science

authors： Edwards DJ,Thickbroom GW,Byrnes ML,Ghosh S,Mastaglia FL

更新日期：2002-12-01 00:00:00

abstract：:It is currently unclear whether it is the need to maintain metabolic efficiency, the need to keep skeletal loading below critical force levels, or simple mechanical factors that drive the walk-to-run (W-R) and run-to-walk (R-W) transitions in human gait. Eighteen adults (9 males and 9 females) locomoted on an instrume...

journal_title：Human movement science

authors： Raynor AJ,Yi CJ,Abernethy B,Jong QJ

更新日期：2002-12-01 00:00:00

abstract：:Movements of the lumbar spine and hips were measured in 20 healthy subjects using an electromagnetic tracking device. Movement sensors were attached to the L1 spinous process, the sacrum and the thighs. Each subject was requested to perform the following movements of the trunk: forward and backward bending, lateral be...

journal_title：Human movement science

authors： Lee RY,Wong TK

更新日期：2002-10-01 00:00:00

abstract：:Two experiments were conducted to investigate the reaction times (RTs) and anticipation of karate athletes. In Experiment 1, choice RTs and simple RTs were measured with two types of stimuli. One was videotaped scenes of opponent's offensive actions, which simulated the athletes' view in real situations, and the other...

journal_title：Human movement science

authors： Mori S,Ohtani Y,Imanaka K

更新日期：2002-07-01 00:00:00

abstract：:An attempt was made to extend Fitts' law to a three-dimensional movement (pointing) task to enhance its predictive performance in this domain. An experiment was conducted in which 10 subjects performed three-dimensional pointing movements under the manipulation of target size, distance to target and direction to targe...

journal_title：Human movement science

authors： Murata A,Iwase H

更新日期：2001-12-01 00:00:00

abstract：:Two questions emerge from the literature concerning the perceptual-motor processes underlying the visual regulation of step length. The first concerns the effects of velocity on the onset of visual control (VCO), when visual regulation of step length begins during goal-directed locomotion. The second concerns the effe...

journal_title：Human movement science

authors： Bradshaw EJ,Sparrow WA

更新日期：2001-11-01 00:00:00

abstract：:Two reliable findings in discrete, rapid aimed movements are that reaction time increases with decrease in target diameter (for the short-length movements), and reaction time is not affected by movement length [Journal of Experimental Psychology, Human Perception and Performance 104 (2) (1975) 147]. Participants norma...

journal_title：Human movement science

authors： Mohagheghi AA,Anson JG

更新日期：2001-11-01 00:00:00

abstract：:We explored a two-dimensional task space variant of the classical rhythmical Fitts' task in which participants were asked to sequentially cross four targets arranged around the extreme points of the major axes of an ellipse. Fitts' law was found to adequately describe the changes in movement time with the variations i...

journal_title：Human movement science

authors： Mottet D,Bootsma RJ

更新日期：2001-06-01 00:00:00

abstract：:Several studies have linked poor kinaesthetic ability with poor motor coordination in school-aged children. However, few studies have investigated kinaesthesis in younger children. The aim of this study was to determine if preschool aged children who have been identified as at risk of developing developmental coordina...

journal_title：Human movement science

authors： Coleman R,Piek JP,Livesey DJ

更新日期：2001-03-01 00:00:00